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Tombstones spun on their bases during the 1937 earthquakes that struck Anna, Ohio

12:00AM

August 28, 2006

A new, highly sophisticated global positioning “monument” was installed this month on the grounds of the Ohio Earthquake Information Center north of Columbus. The instrument – the only one of its kind in the state – will detect minute movement in subsurface rock, helping scientists better understand the shifting of the North American landmass. It may also help them predict earthquakes in Ohio.